AIRDOG A4SPBD104 FP-150-4G AIR/FUEL SEPARATION SYSTEM FOR 1998.5–2004 CUMMINS 5.9L 24V

Product Description

The AirDog® I FP-150-4G (A4SPBD104) is a 150 GPH frame-rail mounted air/fuel separation system engineered for the 1998.5–2004 Dodge Ram Cummins 5.9L 24-valve (VP44 and early CP3). It removes entrained air, water, and particulates before fuel reaches the injection pump, improving throttle response, injector and pump life, and overall reliability.

Vehicle Fitment

• 1998.5–2002 Dodge Ram 2500/3500, 5.9L Cummins 24V (VP44)
• 2003–2004 Dodge Ram 2500/3500, 5.9L Cummins 24V (early CP3)

Features

• 150 GPH flow rate for stock to heavily modified builds
• Frame-rail sandwich-plate mount; no drilling on frame
• Includes 1/2" draw-straw pickup and complete hose/fitting kit
• Supplies clean, de-aerated fuel directly to VP44/CP3

Cross-Reference / Alternatives (AirDog only)

• A4SPBD101 – FP-100-4G (98.5–04 w/o in-tank pump)
• A4SPBD153 – FP-100-4G with in-tank fuel pump (98.5–04)
• A4SPBD102 – FP-100-4G (04.5–18 Cummins)

Installation Instructions

• AirDog FP-100/FP-150 General Install Manual (example)
• Product page with “Documents” → 1998.5–2004 VP44 & CR 5.9L FP-100/150 Install (Rev. 1-10-24)
• PureFlow AirDog Resources Library (full index)

Why Buy From CPP Diesel

• Real diesel techs, fast shipping, and proven Cummins expertise
• Only genuine AirDog systems—no knockoffs

FAQ

Will this work on both VP44 and early CP3 trucks?

Yes. A4SPBD104 is designed for 1998.5–2002 VP44 and 2003–2004 early CP3 Cummins applications.

Do I need to drop the tank?

No tank drop is required for mounting the pump. The kit includes a 1/2" draw-straw pickup for the tank; follow the included instructions for installation.

What pressure does the FP-150-4G run?

It’s preset for VP44/CP3 requirements; the system supplies steady, de-aerated fuel at the appropriate inlet pressure to the injection pump.

How often should I change the filters?

AirDog recommends following the service intervals in the manual and adjusting based on fuel quality and usage.

Specifications for airdog A4SPBD104